P151SUMA.cpp

#include<iostream>
#include<cstring>
#include<algorithm>
#include<bits/stdc++.h>
#include<stdio.h>
#include<map>
#include<math.h>
using namespace std;

char s[100001];
int A[100001];
int n,l,r,kq,m;

int main()
{
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	#if KHUE
		freopen("24628.int","r",stdin);
//		freopen("","w",stdout);
	#endif
	cin >> s;
	m=strlen(s);
	for(int i=0;i<m;i++)
	{
		if(s[i]==s[i+1])
			A[i+1]=A[i]+1;
		else
			A[i+1]=A[i];
	}
	
	cin >> n;
	for(int i=1;i<=n;i++)
	{
		cin >> l >> r;
		kq=A[r-1]-A[l-1];
		cout << kq << endl;
	}
}